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P87C51RB+IB from PHI,Philips

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P87C51RB+IB

Manufacturer: PHI, PHILIPS

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz

Partnumber Manufacturer Quantity Availability
P87C51RB+IB,P87C51RBIB PHI, PHILIPS 1170 In Stock

Description and Introduction

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz The **P87C51RB+IB** from PHILIPS (now NXP Semiconductors) is a high-performance 80C51 microcontroller with enhanced features for embedded applications. Built on a robust CMOS architecture, it combines low power consumption with reliable operation, making it suitable for industrial, automotive, and consumer electronics.  

This 8-bit microcontroller includes **8 KB of OTP (One-Time Programmable) ROM**, **256 bytes of RAM**, and four 8-bit I/O ports, providing flexibility for interfacing with peripherals. It supports a wide operating voltage range (2.7V to 5.5V) and features a **16-bit timer/counter**, UART serial communication, and an interrupt structure with five sources.  

The **P87C51RB+IB** is compatible with the 80C51 instruction set, ensuring seamless integration into existing designs. Its OTP memory allows for secure, one-time programming, ideal for production environments where firmware stability is critical. Additionally, the microcontroller offers power-saving idle and power-down modes, enhancing energy efficiency in battery-operated systems.  

With a maximum clock frequency of **16 MHz**, it delivers sufficient processing power for real-time control tasks. The device is housed in a **PLCC or DIP package**, facilitating easy prototyping and deployment.  

Engineers favor the **P87C51RB+IB** for its balance of performance, cost-effectiveness, and legacy compatibility, making it a dependable choice for embedded system development.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz

Alternative Part Number

  • AT89C51RB2-IM --: 8051-compatible MCU with 16KB flash and similar pinout, widely available and a common drop-in replacement for P87C51RB designs.
  • W78E516B-40PL --: 8051-core microcontroller with comparable memory and I/O, often used as a substitute for Philips 87C51 family parts.
  • STC89C52RC-40I-PDIP --: Popular 8051-compatible MCU with 8KB flash, low cost and broad availability, suitable for many P87C51RB applications.
  • AT89C51RB2-IM --: Pin-compatible 8051 microcontroller with 16KB flash, drop-in replacement for the P87C51RB in most embedded designs.
  • W78E516B-40PL --: 8051-compatible MCU with 64KB flash and similar peripheral set, suitable substitute when firmware is recompiled.
  • STC89C52RC-40I-PDIP --: Widely available 8051-core MCU with 8KB flash, low-cost alternative for legacy Philips 87C51 applications.

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